import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken, removeToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()

  if (hasToken) {
    if (to.path === '/login') {
      next({ path: '/' })
      NProgress.done()
    } else {
      const hasGetUserInfo = store.getters.name
      // 如果有个人信息就获取，如果没有就先获取再跳转登录
      if (hasGetUserInfo) {
        next()
      } else {
        try {
          // 获取个人中心数据
          const { code } = await store.dispatch('user/getInfo')
          if(code !== 4101) {
            next()
          } else {
            // removeToken()
            Message.error(error || '获取用户信息失败，请重新登录!')
            next(`/login?redirect=${to.path}`)
          }
        } catch (error) {
          // 清除token并且重新跳转到登录页面
          removeToken()
          Message.error(error || '获取用户信息失败，请重新登录!')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        }
      }
    }
  } else {
    /* 如果没有token */
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
